NATURAL SCIENCES OF PHILADELPHIA. 73 



the scanty remains of the fruit of the former collection were analogous to that 

 of E. nanum var. Terglovense, DC, well-formed fruit of the present collec- 

 tion is nearly as E. villosum is described and figured, having an inflexed mar- 

 gin with ciliate-spinulose teeth, thus lending confirmation to Dr. Hooker's 

 view. And the back is almost as concave as in an Omphalodes. It will thus 

 apparently take the name of E. villosum var. aretioides. 441. Lithosperjium 

 pilosum, Nutt. ; same as 295 of Parry. 442. Mertensia Sibirica, Don., non 

 DC. Small form, exactly the Pdlmonaria ciliata, Torr. Dr. Parry, as be- 

 fore (28;3), collected large forms, and now some with the leaves more glau- 

 cescent beneath. 443. MertensiA alpina, Don. Pdlmonaria alpina, Torr. 

 Barely a span high. 444. A very dwarf and hirsute form of the last, the sepals 

 strikingly ciliate with long hirsute hairs, from South Park. These two num- 

 bers, and additional still dwarfer specimens of Parry's No. 286, induce me 

 now to refer the latter (along with M. Drummondii) to 31. alpina. 445. M. 

 alpina, Don., var. ; the loosely paniculate, small-flowered form, Dr. Parry's 

 234, mixed in my set with M. Fexdleri, Gray, Rev. Mertens., in Suppl. Euum. 

 PI. Parry, p. 46 (339) ; the latter, perhaps, runs into the former, but it is 

 readily known by the barely 5-cleft, calyx ; the lobes only equalling or shorter 

 than the tube. 



HYDROPHYLLACEJE. 



439. Phacelia circinata, Jacq. 446. P. Popei, Torr. and Gray. "Flowers 

 white." 447. P. (Eutoca) sericea, Gray. 



POLEMONIACEiE. 



448. Polemonium cjerpleum, L. A very viscid-pubescent and glandular va- 

 riety ; same as Parry's 275, and, (except that the stem is very leafy to the 

 top,) Geyer's 530, and Fendler's 645. "Low and middle elevations.'' 449. 

 P. CffiRULEUM, L., answering to the plant of the Old World, except that the 

 seeds are more or less wing-margined at each end ; so it is the var. ? ptero- 

 spcrma, Benth. in DC " Subalpine, in swampy places." 450,451. P. 

 confertum, u. sp.* P. pulckerrh/ium in Euum. PL Parry, No. 274, but not of 

 Hook. '-High alpine, and at lower elevations." 452. P. pulchellum, 

 Bunge ; just the Altai plant ; and also accords with some of Hooker's speci- 



* Pilem) 'r'/u onpsbtum 'sp. mv.): huti'le (3-1-p6Uicare) pi. m. vissoso glandulosum, odorem 

 moschatum rcdolens: foliolis numerosissimis parvia (lj 5 lin. longis) ovalibus seu lineari-oblongis 

 plerisque irregulariter verticillato seufaseiculato-conjiertis (nempe singulis 2-3-sectis) ; floribus ad 

 apieem caulis simpliois capitato-confertis nutantibus; ralyeis segmentis linceolatis acntis tubo ob- 

 lotigo brevioribus: corolla infundUmliformi (ssepius pollicari) calycem bis terve Buperante, Libia 

 r dun latis tubo 2-5-plo brevioribus. Var. a. (P. pulcherrimum, Gray, Enum. PL Parry, non 

 Hoot.): capUulo florum deriso, fruetif.-ro arete spicat > ; corollae lste ceeruleae limbo amplo. Hull 

 an! Harbnir coll. 450; strictly alpine Var. 0. mei.li vm: floribus ia spicam laxioretn foliosum 

 digestis nunc subpanieulatis odorem melliaspirantibus; c irolla ant eajrulea ant ssepius ochroleuca, 

 lobis minoribus mbo productive ?-4-plo brevioribus. In crevices of rocks, wholly below the 

 alpine region. Leaves exahng the musky odor of var. a; the flowers with a delicious honey- 

 like fragrance. Hall and Harbour, coll. 451. In the present condition of the species of Polemonium, 

 I could not venture to add another to the list, if the present were notshown, by the fine suite of 

 specimens now collected, to be a most distinct one It is probably (at least in the var. a) the very 

 handsomest of the genus; and, as ripe seeds were collecti-d, it may be brought into cultivation. I 

 cannot doubt Ibattbetwo varieties are of one species. The ampler limbof thecorollaof var.a (when 

 fully expanded Sometimes ten or eleven lines in diameter,) often renders the funnel-form tube less 

 conspicuous; but this form passes by gradations into those of var. /3, in which the narrow tube of the 

 Corolla (9 or 10 lines 1 nig) three or four times exceeds the smaller lobes. Indeed, this connects Po- 

 lem mium as closely with Tpom opsis as the latter is eonne 'ted with true Gilii. A high alpine form of 

 var.a was collected by Dr. Lyall in the Rocky Mountains farther north, lat. 49, at the height of 

 8000 feet, having the verticillate leaflets o| the species, but a less exserted corolla. It was taken 

 for P. viscosum-, Nutt.; but the minute leaflets of the latter are not verticillate or fascicled 

 although much crowded, and its calyx and corolla are quite different, allying it to P. pulchellum. 

 I make small account of the ovules, finding them to vary widely in number in 1'ffeiuut (lowers 

 of the same inflore- ence; but in var. a, I have counted a dozen in each eeli , in var. /3, usually 

 only 4 to 6. The anthers are more oblong than in P. Cieruleum. Bewate of the change of shape 

 which the effete anthers undergo: when dry, they are short-oval, when soaked they become 

 elongated-oblong, as P. Richardsonii is figure 1 in Bot. Mag. In like manner those of P.'cxruUum 

 change from rotund to short-oblong. 



1863.] 6 



